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Evaluate the following limit: limx→3[2x+6x]

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Question

Evaluate the following limit:

`lim_(x -> 3)[sqrt(2x + 6)/x]`

Sum
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Solution

`lim_(x -> 3)[sqrt(2x + 6)/x]`

= `(lim_(x -> 3) sqrt(2x + 6))/(lim_(x -> 3) x`

= `sqrt(2(3) + 6)/3`

= `sqrt(12)/3`

= `(2sqrt(3))/3`

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Chapter 7: Limits - Exercise 7.1 [Page 138]

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